Anna said that the product of 7/8 times 1 1/2 = 7/2 how can you tell that her answer is wrong? a: the denominator cannot be the same as one of the factors. b: the answer cannot be an improper fraction c: the answer must be less than 7/8. d: 78 of a number cannot be greater than the number.

a

step-by-step explanation:

the denominator cannot be the same as one of the factors.

8 denominator times 2 denominator = 16

and 7 numerator time 11 = 77

77/16= 77/16 ( they cannot be further simplified)

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94